Results 191 to 200 of about 81,848 (246)
Some of the next articles are maybe not open access.
Scandinavian Journal of Gastroenterology, 1991
Histamine is formed by decarboxylation of the amino acid histidine and is found both in plants and in animals, including man. In man it has important biologic functions. To assess the physiologic role of histamine, however, it is necessary to have a reliable and convenient method to determine its concentration in biologic fluids and tissue.
Helge Waldum, E Brenna, A K Sandvik
exaly +3 more sources
Histamine is formed by decarboxylation of the amino acid histidine and is found both in plants and in animals, including man. In man it has important biologic functions. To assess the physiologic role of histamine, however, it is necessary to have a reliable and convenient method to determine its concentration in biologic fluids and tissue.
Helge Waldum, E Brenna, A K Sandvik
exaly +3 more sources
Radioimmunoassay of Glibenclamide
Diabetes, 1979A specific, sensitive, and simple radioimmunoassay was developed for the oral hypoglycemic drug glibenclamide, N-4-[2-(5-chloro-2-methoxy-benzamide)- ethyl]-benzenesulfonyl-N'-cyclohexylurea. Antiserum against glibenclamide was obtained from rabbits immunized with an antigen prepared by conjugating the diazonium salt of N-(p-amino-benzamidoethyl ...
K, Kawashima, T, Kuzuya, A, Matsuda
openaire +2 more sources
Radioimmunoassay of polyacrylamide
Experientia, 1978Antiserum to polyacrylamide has been produced in rabbits. It can be used in a sensitive radioimmunoassay for quantitation of polyacrylamide at very low concentrations. This novel approach to the analysis of a synthetic, biologically inactive, hydrocarbon polymer has potentially widespread implications, for example, in the downstream measurement of ...
P A, Drewes, A O, Kamp, J W, Winkelman
openaire +2 more sources
Gastroenterology, 1978
Several sensitive radioimmunoassay systems for secretin have been developed and reported1–6. The development of these assay systems depended upon the generation of a specific secretin antiserum and the iodination of secretin (natural porcine secretin, synthetic secretin or a tyrosyl derivative of secretin).
P L, Rayford +2 more
openaire +4 more sources
Several sensitive radioimmunoassay systems for secretin have been developed and reported1–6. The development of these assay systems depended upon the generation of a specific secretin antiserum and the iodination of secretin (natural porcine secretin, synthetic secretin or a tyrosyl derivative of secretin).
P L, Rayford +2 more
openaire +4 more sources
The radioimmunoassay of buprenorphine
European Journal of Clinical Pharmacology, 1980Antisera to buprenorphine were obtained in rabbits immunised with 3-0-carboxymethylbuprenorphine and N-hemisuccinyl-norbuprenorphine conjugated to bovine serum albumin. Using the latter antiserum and tritium labelled buprenorphine a radioimmunoassay have good accuracy and precision was developed for concentrations as low as 50 picograms in 1 ml of ...
A J, Bartlett +6 more
openaire +2 more sources
Angewandte Chemie International Edition in English, 1976
AbstractBiologically active substances are often effective in nanogram or even smaller quantities. Investigations of their mode of action therefore require highly sensitive microanalytical methods of detection. Chemical, chromatographic or spectrometric methods frequently lack the required sensitivity; it was only after the discovery of the ...
openaire +2 more sources
AbstractBiologically active substances are often effective in nanogram or even smaller quantities. Investigations of their mode of action therefore require highly sensitive microanalytical methods of detection. Chemical, chromatographic or spectrometric methods frequently lack the required sensitivity; it was only after the discovery of the ...
openaire +2 more sources
A radioimmunoassay for progesterone
Steroids, 1972Abstract The need for a simple and fast quantitative method for progesterone with routine laboratory and clinical application motivated the development of a radioimmunoassay. Progesterone antibodies were produced in rabbits by immunization with a bovine serum albumin conjugate of 11α-hydroxyprogesterone hemisuccinate.
J M, Spieler +3 more
openaire +2 more sources
2003
Radioimmunoassay is often described in terms of the competition between a radiolabeled antigen (Ag*) and its unlabeled counterpart (Ag) for binding to a limited amount of specific antibody (Ab) (1). In most radioimmunoassays the reaction is allowed to proceed to equilibrium and thus, can be represented by Eq. (1). [Formula: see text].
openaire +4 more sources
Radioimmunoassay is often described in terms of the competition between a radiolabeled antigen (Ag*) and its unlabeled counterpart (Ag) for binding to a limited amount of specific antibody (Ab) (1). In most radioimmunoassays the reaction is allowed to proceed to equilibrium and thus, can be represented by Eq. (1). [Formula: see text].
openaire +4 more sources
Journal of Endocrinology, 1978
Abstract The evaluation of a radioimmunoassay of oxytocin is described. The method involved careful collection and transportation of blood at 4 °C, acidification of the plasma, extraction with Fuller's earth and radioimmunoassay using antisera raised in rabbits immunized against oxytocin conjugated to bovine serum albumin and 125I ...
M Y, Dawood, K S, Raghavan, C, Pociask
openaire +2 more sources
Abstract The evaluation of a radioimmunoassay of oxytocin is described. The method involved careful collection and transportation of blood at 4 °C, acidification of the plasma, extraction with Fuller's earth and radioimmunoassay using antisera raised in rabbits immunized against oxytocin conjugated to bovine serum albumin and 125I ...
M Y, Dawood, K S, Raghavan, C, Pociask
openaire +2 more sources